regarding how personality develops through the life span, which of the following is false? A. extroversion and openness to experience slowly decline with advancing age. B. after the age of 50, most...

regarding how personality develops through the life span, which of the following is false?

A. extroversion and openness to experience slowly decline with advancing age.

B. after the age of 50, most older adults tend to become "grumpy old men" or cranky old woman"

C. personality starts to stabilize at age three and continues to "harden" well past age 50.

D. temperament consists of the biological predispositions to be sensitive, irritable, distractible, and display a typical mood.